Fix IOStats for Nimble #65
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Summary: Pull Request resolved: facebookincubator#65 X-link: facebookincubator/velox#10216 IOStats are being calculated in different layers of the IO stacks. Since Nimble and DWRF don't share parts of the stack, some IOStats calculation were not affecting Nimble. Probably the right thing to do is to move all IOStats calculations to the bottom layers (WSFile, cache and SSD reads), where IO is actually performed (and these layers are shared beteen Nimble nad DWRF). But it seems like that for this change, we need a design, clarifying what we actually want to track and how to track it. Since we don't have the cycles to create this design right now, I opted for a simple solution, where I create a simple layer on the Nimble side, which will calculate these stats. Reviewed By: Yuhta, sdruzkin Differential Revision: D58559606
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Summary: X-link: facebookincubator/nimble#65 Pull Request resolved: facebookincubator#10216 IOStats are being calculated in different layers of the IO stacks. Since Nimble and DWRF don't share parts of the stack, some IOStats calculation were not affecting Nimble. Probably the right thing to do is to move all IOStats calculations to the bottom layers (WSFile, cache and SSD reads), where IO is actually performed (and these layers are shared beteen Nimble nad DWRF). But it seems like that for this change, we need a design, clarifying what we actually want to track and how to track it. Since we don't have the cycles to create this design right now, I opted for a simple solution, where I create a simple layer on the Nimble side, which will calculate these stats. Reviewed By: Yuhta, sdruzkin Differential Revision: D58559606
Summary: Pull Request resolved: facebookincubator#65 X-link: facebookincubator/velox#10216 IOStats are being calculated in different layers of the IO stacks. Since Nimble and DWRF don't share parts of the stack, some IOStats calculation were not affecting Nimble. Probably the right thing to do is to move all IOStats calculations to the bottom layers (WSFile, cache and SSD reads), where IO is actually performed (and these layers are shared beteen Nimble nad DWRF). But it seems like that for this change, we need a design, clarifying what we actually want to track and how to track it. Since we don't have the cycles to create this design right now, I opted for a simple solution, where I create a simple layer on the Nimble side, which will calculate these stats. Reviewed By: Yuhta, sdruzkin Differential Revision: D58559606
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Summary: X-link: facebookincubator/nimble#65 Pull Request resolved: facebookincubator#10216 IOStats are being calculated in different layers of the IO stacks. Since Nimble and DWRF don't share parts of the stack, some IOStats calculation were not affecting Nimble. Probably the right thing to do is to move all IOStats calculations to the bottom layers (WSFile, cache and SSD reads), where IO is actually performed (and these layers are shared beteen Nimble nad DWRF). But it seems like that for this change, we need a design, clarifying what we actually want to track and how to track it. Since we don't have the cycles to create this design right now, I opted for a simple solution, where I create a simple layer on the Nimble side, which will calculate these stats. Reviewed By: Yuhta, sdruzkin Differential Revision: D58559606
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Summary: X-link: facebookincubator/nimble#65 Pull Request resolved: #10216 IOStats are being calculated in different layers of the IO stacks. Since Nimble and DWRF don't share parts of the stack, some IOStats calculation were not affecting Nimble. Probably the right thing to do is to move all IOStats calculations to the bottom layers (WSFile, cache and SSD reads), where IO is actually performed (and these layers are shared beteen Nimble nad DWRF). But it seems like that for this change, we need a design, clarifying what we actually want to track and how to track it. Since we don't have the cycles to create this design right now, I opted for a simple solution, where I create a simple layer on the Nimble side, which will calculate these stats. Reviewed By: Yuhta, sdruzkin Differential Revision: D58559606 fbshipit-source-id: 7a13710e5273bd07f19106564c86cce88902da38
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Summary:
X-link: facebookincubator/velox#10216
IOStats are being calculated in different layers of the IO stacks.
Since Nimble and DWRF don't share parts of the stack, some IOStats calculation were not affecting Nimble.
Probably the right thing to do is to move all IOStats calculations to the bottom layers (WSFile, cache and SSD reads), where IO is actually performed (and these layers are shared beteen Nimble nad DWRF).
But it seems like that for this change, we need a design, clarifying what we actually want to track and how to track it.
Since we don't have the cycles to create this design right now, I opted for a simple solution, where I create a simple layer on the Nimble side, which will calculate these stats.
Reviewed By: Yuhta, sdruzkin
Differential Revision: D58559606